/Engine/Source/Runtime/Experimental/Chaos/Public/GeometryCollection/GeometryCollectionClusteringUtility.h
Collapse hierarchy of selected bones at specified level
static void CollapseSelectedHierarchy ( int8 Level, const [TArray](API\Runtime\Core\Containers\TArray)< int32 > & SelectedBones, [FGeometryCollection](API\Runtime\Chaos\GeometryCollection\FGeometryCollection) * GeometryCollection )